fix(execution): carrousel de médias et chrono du score (tickets #41, #42, #43)

Corrige l'affichage des images (#41) et de la vidéo (#42) dans le
carrousel de médias, et le format du chrono de score qui n'affichait
que les secondes (#43) sur workout_execution_screen.dart. Ajoute la
dépendance video_player (2.13.0) pour la lecture vidéo. Ajuste
home_screen.dart, history_screen.dart et workout_template_screen.dart
en conséquence. flutter analyze propre, flutter test 77/77 vert (plus
aucun hang), pub get résolu.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

lib/application/use_cases.dart

@@ -350,6 +350,10 @@ final class MediaUseCases {
     return asset;
   }
 
+  Future<MediaAsset?> findById(String id) {
+    return mediaRepository.findById(id);
+  }
+
   Future<Exercise> attachToExercise({
     required String exerciseId,
     required String mediaAssetId,

lib/presentation/history_screen.dart

@@ -13,6 +13,7 @@ final class HistoryListScreen extends StatefulWidget {
     required this.workoutTemplateUseCases,
     required this.activeUseCases,
     required this.closeUseCase,
+    this.mediaUseCases,
     super.key,
   });
 
@@ -20,6 +21,7 @@ final class HistoryListScreen extends StatefulWidget {
   final WorkoutTemplateUseCases workoutTemplateUseCases;
   final ActiveWorkoutSessionUseCases activeUseCases;
   final CloseWorkoutSessionUseCase closeUseCase;
+  final MediaUseCases? mediaUseCases;
 
   @override
   State<HistoryListScreen> createState() => _HistoryListScreenState();
@@ -93,6 +95,7 @@ final class _HistoryListScreenState extends State<HistoryListScreen> {
           workoutTemplateUseCases: widget.workoutTemplateUseCases,
           activeUseCases: widget.activeUseCases,
           closeUseCase: widget.closeUseCase,
+          mediaUseCases: widget.mediaUseCases,
         ),
       ),
     );
@@ -111,6 +114,7 @@ final class HistoryDetailScreen extends StatelessWidget {
     required this.workoutTemplateUseCases,
     required this.activeUseCases,
     required this.closeUseCase,
+    this.mediaUseCases,
     super.key,
   });
 
@@ -119,6 +123,7 @@ final class HistoryDetailScreen extends StatelessWidget {
   final WorkoutTemplateUseCases workoutTemplateUseCases;
   final ActiveWorkoutSessionUseCases activeUseCases;
   final CloseWorkoutSessionUseCase closeUseCase;
+  final MediaUseCases? mediaUseCases;
 
   @override
   Widget build(BuildContext context) {
@@ -191,6 +196,7 @@ final class HistoryDetailScreen extends StatelessWidget {
           closeUseCase: closeUseCase,
           historyUseCases: historyUseCases,
           workoutTemplateUseCases: workoutTemplateUseCases,
+          mediaUseCases: mediaUseCases,
         ),
       ),
     );

lib/presentation/home_screen.dart

@@ -154,6 +154,7 @@ final class _HomeScreenState extends State<HomeScreen> with RouteAware {
                   activeUseCases: widget.bootstrap.activeWorkoutSessionUseCases,
                   closeUseCase: widget.bootstrap.closeWorkoutSessionUseCase,
                   historyUseCases: widget.bootstrap.workoutHistoryUseCases,
+                  mediaUseCases: widget.bootstrap.mediaUseCases,
                 ),
               ),
             ),
@@ -170,6 +171,7 @@ final class _HomeScreenState extends State<HomeScreen> with RouteAware {
                       widget.bootstrap.workoutTemplateUseCases,
                   activeUseCases: widget.bootstrap.activeWorkoutSessionUseCases,
                   closeUseCase: widget.bootstrap.closeWorkoutSessionUseCase,
+                  mediaUseCases: widget.bootstrap.mediaUseCases,
                 ),
               ),
             ),
@@ -188,6 +190,7 @@ final class _HomeScreenState extends State<HomeScreen> with RouteAware {
           closeUseCase: widget.bootstrap.closeWorkoutSessionUseCase,
           historyUseCases: widget.bootstrap.workoutHistoryUseCases,
           workoutTemplateUseCases: widget.bootstrap.workoutTemplateUseCases,
+          mediaUseCases: widget.bootstrap.mediaUseCases,
         ),
       ),
     );

lib/presentation/workout_execution_screen.dart

@@ -1,7 +1,9 @@
 import 'dart:async';
 import 'dart:convert';
+import 'dart:io';
 
 import 'package:flutter/material.dart';
+import 'package:video_player/video_player.dart';
 
 import '../application/application.dart';
 import '../domain/domain.dart';
@@ -10,6 +12,8 @@ import 'theme.dart';
 
 enum WorkoutExecutionMode { active, rest, paused, finished }
 
+typedef VideoMediaBuilder = Widget Function(BuildContext context, MediaAsset asset);
+
 final class WorkoutExecutionScreen extends StatefulWidget {
   const WorkoutExecutionScreen({
     required this.initialSession,
@@ -17,6 +21,9 @@ final class WorkoutExecutionScreen extends StatefulWidget {
     required this.closeUseCase,
     required this.historyUseCases,
     required this.workoutTemplateUseCases,
+    this.mediaUseCases,
+    this.mediaAssetLoader,
+    this.videoMediaBuilder,
     super.key,
   });
 
@@ -25,6 +32,9 @@ final class WorkoutExecutionScreen extends StatefulWidget {
   final CloseWorkoutSessionUseCase closeUseCase;
   final WorkoutHistoryUseCases historyUseCases;
   final WorkoutTemplateUseCases workoutTemplateUseCases;
+  final MediaUseCases? mediaUseCases;
+  final Future<MediaAsset?> Function(String id)? mediaAssetLoader;
+  final VideoMediaBuilder? videoMediaBuilder;
 
   @override
   State<WorkoutExecutionScreen> createState() => _WorkoutExecutionScreenState();
@@ -36,6 +46,7 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
   late WorkoutExecutionMode _mode;
   Timer? _ticker;
   Timer? _restTicker;
+  Timer? _scoreStopwatchTicker;
   WorkoutHistory? _completedHistory;
   String? _activeRestStateId;
   ActiveScoreStopwatchState? _scoreStopwatch;
@@ -73,6 +84,7 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
   void dispose() {
     _ticker?.cancel();
     _restTicker?.cancel();
+    _scoreStopwatchTicker?.cancel();
     _scoreController.dispose();
     super.dispose();
   }
@@ -339,10 +351,20 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
         restRemainingSeconds: _mode == WorkoutExecutionMode.rest
             ? _remainingRestSeconds
             : null,
+        mediaAssetLoader: _loadMediaAsset,
+        videoMediaBuilder: widget.videoMediaBuilder,
       ),
     );
   }
 
+  Future<MediaAsset?> _loadMediaAsset(String id) {
+    final loader = widget.mediaAssetLoader;
+    if (loader != null) return loader(id);
+    final mediaUseCases = widget.mediaUseCases;
+    if (mediaUseCases == null) return Future<MediaAsset?>.value();
+    return mediaUseCases.findById(id);
+  }
+
   int get _scoreStopwatchElapsedMs {
     final manual = _manualScoreTimeMs;
     if (manual != null) {
@@ -359,6 +381,7 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
     if (!_exercise.stopwatchScoreEnabled) {
       _scoreStopwatch = null;
       _manualScoreTimeMs = null;
+      _refreshScoreStopwatchTicker();
       return;
     }
     final state = await widget.activeUseCases.findScoreStopwatch(
@@ -369,6 +392,7 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
     );
     if (!mounted) return;
     setState(() => _scoreStopwatch = state);
+    _refreshScoreStopwatchTicker();
   }
 
   Future<void> _startScoreStopwatch() async {
@@ -383,6 +407,7 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
       _scoreStopwatch = state;
       _manualScoreTimeMs = null;
     });
+    _refreshScoreStopwatchTicker();
   }
 
   Future<ActiveScoreStopwatchState?> _stopScoreStopwatch() async {
@@ -396,6 +421,7 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
     );
     if (!mounted) return stopped;
     setState(() => _scoreStopwatch = stopped);
+    _refreshScoreStopwatchTicker();
     return stopped;
   }
 
@@ -411,6 +437,7 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
       _scoreStopwatch = state;
       _manualScoreTimeMs = null;
     });
+    _refreshScoreStopwatchTicker();
   }
 
   Future<void> _resetScoreStopwatch() async {
@@ -445,6 +472,23 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
       _scoreStopwatch = null;
       _manualScoreTimeMs = null;
     });
+    _refreshScoreStopwatchTicker();
+  }
+
+  void _refreshScoreStopwatchTicker() {
+    final shouldTick =
+        _scoreStopwatch?.status == ActiveScoreStopwatchStatus.running;
+    if (!shouldTick) {
+      _scoreStopwatchTicker?.cancel();
+      _scoreStopwatchTicker = null;
+      return;
+    }
+    if (_scoreStopwatchTicker != null) return;
+    _scoreStopwatchTicker = Timer.periodic(const Duration(milliseconds: 100), (
+      _,
+    ) {
+      if (mounted) setState(() {});
+    });
   }
 
   Future<void> _editScoreStopwatchTime() async {
@@ -575,6 +619,7 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
         _scoreStopwatch = null;
         _manualScoreTimeMs = null;
       });
+      _refreshScoreStopwatchTicker();
     }
     if (!skipped &&
         _exercise.stopwatchScoreEnabled &&
@@ -767,6 +812,7 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
     _activeRestStateId = null;
     _scoreStopwatch = null;
     _manualScoreTimeMs = null;
+    _refreshScoreStopwatchTicker();
     _seriesStartedAt = DateTime.now().toUtc();
     _session = await widget.activeUseCases.updateProgress(
       sessionId: _session.metadata.id,
@@ -836,6 +882,9 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
           closeUseCase: widget.closeUseCase,
           historyUseCases: widget.historyUseCases,
           workoutTemplateUseCases: widget.workoutTemplateUseCases,
+          mediaUseCases: widget.mediaUseCases,
+          mediaAssetLoader: widget.mediaAssetLoader,
+          videoMediaBuilder: widget.videoMediaBuilder,
         ),
       ),
     );
@@ -1256,10 +1305,14 @@ enum _MediaSheetSection { images, video }
 final class _ExerciseMediaSheet extends StatefulWidget {
   const _ExerciseMediaSheet({
     required this.exercise,
+    required this.mediaAssetLoader,
+    this.videoMediaBuilder,
     this.restRemainingSeconds,
   });
 
   final ExecutionExercise exercise;
+  final Future<MediaAsset?> Function(String id) mediaAssetLoader;
+  final VideoMediaBuilder? videoMediaBuilder;
   final int? restRemainingSeconds;
 
   @override
@@ -1346,9 +1399,14 @@ final class _ExerciseMediaSheetState extends State<_ExerciseMediaSheet> {
                 pageController: _pageController,
                 currentIndex: _imageIndex,
                 onPageChanged: (index) => setState(() => _imageIndex = index),
+                mediaAssetLoader: widget.mediaAssetLoader,
               )
             else if (hasVideo)
-              _VideoMediaPanel(videoMediaId: exercise.videoMediaId!),
+              _VideoMediaPanel(
+                videoMediaId: exercise.videoMediaId!,
+                mediaAssetLoader: widget.mediaAssetLoader,
+                videoMediaBuilder: widget.videoMediaBuilder,
+              ),
           ],
         ),
       ),
@@ -1362,12 +1420,14 @@ final class _ImageMediaGallery extends StatelessWidget {
     required this.pageController,
     required this.currentIndex,
     required this.onPageChanged,
+    required this.mediaAssetLoader,
   });
 
   final List<String> imageMediaIds;
   final PageController pageController;
   final int currentIndex;
   final ValueChanged<int> onPageChanged;
+  final Future<MediaAsset?> Function(String id) mediaAssetLoader;
 
   @override
   Widget build(BuildContext context) {
@@ -1396,6 +1456,7 @@ final class _ImageMediaGallery extends StatelessWidget {
                 return _ImageMediaPage(
                   mediaAssetId: imageMediaIds[index],
                   index: index,
+                  mediaAssetLoader: mediaAssetLoader,
                 );
               },
             ),
@@ -1407,10 +1468,15 @@ final class _ImageMediaGallery extends StatelessWidget {
 }
 
 final class _ImageMediaPage extends StatelessWidget {
-  const _ImageMediaPage({required this.mediaAssetId, required this.index});
+  const _ImageMediaPage({
+    required this.mediaAssetId,
+    required this.index,
+    required this.mediaAssetLoader,
+  });
 
   final String mediaAssetId;
   final int index;
+  final Future<MediaAsset?> Function(String id) mediaAssetLoader;
 
   @override
   Widget build(BuildContext context) {
@@ -1422,57 +1488,203 @@ final class _ImageMediaPage extends StatelessWidget {
         border: Border.all(color: tokens.border),
         color: Theme.of(context).colorScheme.surface,
       ),
-      child: Column(
+      child: FutureBuilder<MediaAsset?>(
-        mainAxisAlignment: MainAxisAlignment.center,
+        future: mediaAssetLoader(mediaAssetId),
-        children: [
+        builder: (context, snapshot) {
-          Icon(
+          if (snapshot.connectionState != ConnectionState.done) {
-            Icons.image_outlined,
+            return const Center(child: CircularProgressIndicator());
-            size: 64,
+          }
-            color: Theme.of(context).colorScheme.primary,
+          final asset = snapshot.data;
-          ),
+          if (asset == null || asset.kind != MediaKind.image) {
-          const SizedBox(height: 16),
+            return _MissingMediaPlaceholder(
-          Text(
+              icon: Icons.broken_image_outlined,
-            'Image ${index + 1}',
+              title: 'Image indisponible',
-            style: Theme.of(context).textTheme.titleMedium,
+              subtitle: mediaAssetId,
-          ),
+            );
-          const SizedBox(height: 4),
+          }
-          Text(mediaAssetId, style: Theme.of(context).textTheme.bodySmall),
+          return ClipRRect(
-        ],
+            borderRadius: BorderRadius.circular(6),
+            child: Image.file(
+              _fileFromLocalUri(asset.localUri),
+              key: ValueKey('exercise-image-${asset.metadata.id}'),
+              fit: BoxFit.contain,
+              errorBuilder: (context, error, stackTrace) {
+                return _MissingMediaPlaceholder(
+                  icon: Icons.broken_image_outlined,
+                  title: 'Image introuvable',
+                  subtitle: asset.metadata.id,
+                );
+              },
+            ),
+          );
+        },
       ),
     );
   }
 }
 
 final class _VideoMediaPanel extends StatelessWidget {
-  const _VideoMediaPanel({required this.videoMediaId});
+  const _VideoMediaPanel({
+    required this.videoMediaId,
+    required this.mediaAssetLoader,
+    this.videoMediaBuilder,
+  });
 
   final String videoMediaId;
+  final Future<MediaAsset?> Function(String id) mediaAssetLoader;
+  final VideoMediaBuilder? videoMediaBuilder;
 
   @override
   Widget build(BuildContext context) {
     return CourtBlazerAccentPanel(
       padding: const EdgeInsets.all(16),
-      child: SizedBox(
+      child: FutureBuilder<MediaAsset?>(
-        height: 260,
+        future: mediaAssetLoader(videoMediaId),
-        child: Column(
+        builder: (context, snapshot) {
-          mainAxisAlignment: MainAxisAlignment.center,
+          if (snapshot.connectionState != ConnectionState.done) {
-          children: [
+            return const SizedBox(
-            Icon(
+              height: 260,
-              Icons.play_circle_outline,
+              child: Center(child: CircularProgressIndicator()),
-              size: 64,
+            );
-              color: Theme.of(context).colorScheme.primary,
+          }
-            ),
+          final asset = snapshot.data;
-            const SizedBox(height: 16),
+          if (asset == null || asset.kind != MediaKind.video) {
-            Text('Vidéo', style: Theme.of(context).textTheme.titleMedium),
+            return SizedBox(
-            const SizedBox(height: 4),
+              height: 260,
-            Text(videoMediaId, style: Theme.of(context).textTheme.bodySmall),
+              child: _MissingMediaPlaceholder(
-          ],
+                icon: Icons.videocam_off_outlined,
-        ),
+                title: 'Vidéo indisponible',
+                subtitle: videoMediaId,
+              ),
+            );
+          }
+          final builder = videoMediaBuilder;
+          if (builder != null) {
+            return builder(context, asset);
+          }
+          return _VideoPlayerSurface(asset: asset);
+        },
       ),
     );
   }
 }
 
+final class _VideoPlayerSurface extends StatefulWidget {
+  const _VideoPlayerSurface({required this.asset});
+
+  final MediaAsset asset;
+
+  @override
+  State<_VideoPlayerSurface> createState() => _VideoPlayerSurfaceState();
+}
+
+final class _VideoPlayerSurfaceState extends State<_VideoPlayerSurface> {
+  late final VideoPlayerController _controller;
+  late final Future<void> _initialize;
+
+  @override
+  void initState() {
+    super.initState();
+    _controller = VideoPlayerController.file(
+      _fileFromLocalUri(widget.asset.localUri),
+    );
+    _initialize = _controller.initialize().then((_) {
+      if (mounted) setState(() {});
+    });
+  }
+
+  @override
+  void dispose() {
+    _controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return FutureBuilder<void>(
+      future: _initialize,
+      builder: (context, snapshot) {
+        if (snapshot.connectionState != ConnectionState.done) {
+          return const SizedBox(
+            height: 260,
+            child: Center(child: CircularProgressIndicator()),
+          );
+        }
+        if (snapshot.hasError || !_controller.value.isInitialized) {
+          return SizedBox(
+            height: 260,
+            child: _MissingMediaPlaceholder(
+              icon: Icons.videocam_off_outlined,
+              title: 'Vidéo introuvable',
+              subtitle: widget.asset.metadata.id,
+            ),
+          );
+        }
+        return Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            AspectRatio(
+              aspectRatio: _controller.value.aspectRatio,
+              child: VideoPlayer(_controller),
+            ),
+            const SizedBox(height: 12),
+            IconButton.filled(
+              tooltip: _controller.value.isPlaying ? 'Pause' : 'Lecture',
+              onPressed: () async {
+                if (_controller.value.isPlaying) {
+                  await _controller.pause();
+                } else {
+                  await _controller.play();
+                }
+                if (mounted) setState(() {});
+              },
+              icon: Icon(
+                _controller.value.isPlaying ? Icons.pause : Icons.play_arrow,
+              ),
+            ),
+          ],
+        );
+      },
+    );
+  }
+}
+
+final class _MissingMediaPlaceholder extends StatelessWidget {
+  const _MissingMediaPlaceholder({
+    required this.icon,
+    required this.title,
+    required this.subtitle,
+  });
+
+  final IconData icon;
+  final String title;
+  final String subtitle;
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          Icon(icon, size: 64, color: Theme.of(context).colorScheme.primary),
+          const SizedBox(height: 16),
+          Text(title, style: Theme.of(context).textTheme.titleMedium),
+          const SizedBox(height: 4),
+          Text(subtitle, style: Theme.of(context).textTheme.bodySmall),
+        ],
+      ),
+    );
+  }
+}
+
+File _fileFromLocalUri(String localUri) {
+  final uri = Uri.tryParse(localUri);
+  if (uri != null && uri.hasScheme) {
+    return File.fromUri(uri);
+  }
+  return File(localUri);
+}
+
 final class _WorkoutPlanSetTile extends StatelessWidget {
   const _WorkoutPlanSetTile({
     required this.position,

lib/presentation/workout_template_screen.dart

@@ -13,6 +13,7 @@ final class WorkoutTemplateListScreen extends StatefulWidget {
     required this.activeUseCases,
     required this.closeUseCase,
     required this.historyUseCases,
+    this.mediaUseCases,
     super.key,
   });
 
@@ -21,6 +22,7 @@ final class WorkoutTemplateListScreen extends StatefulWidget {
   final ActiveWorkoutSessionUseCases activeUseCases;
   final CloseWorkoutSessionUseCase closeUseCase;
   final WorkoutHistoryUseCases historyUseCases;
+  final MediaUseCases? mediaUseCases;
 
   @override
   State<WorkoutTemplateListScreen> createState() =>
@@ -141,6 +143,7 @@ final class _WorkoutTemplateListScreenState
           closeUseCase: widget.closeUseCase,
           historyUseCases: widget.historyUseCases,
           workoutTemplateUseCases: widget.workoutTemplateUseCases,
+          mediaUseCases: widget.mediaUseCases,
         ),
       ),
     );

pubspec.lock

@@ -177,6 +177,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.7"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      sha256: "09bad715f418841f976c77db72d5398dc1253c21fb9c0c7f0b0b985860b2d58e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.2"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -344,6 +352,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.2"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      sha256: "6d1264f2dffa1b1101c25a91dff0dc2daee4c18e87cd8538729773c073dbf602"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.15.6"
   http:
     dependency: transitive
     description:
@@ -829,6 +845,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.2.0"
+  video_player:
+    dependency: "direct main"
+    description:
+      name: video_player
+      sha256: "20ef311160e2ced020a62f38e4cc399a1bf289e722fc5fe37c9d7b18e44c9e8d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.13.0"
+  video_player_android:
+    dependency: transitive
+    description:
+      name: video_player_android
+      sha256: "5121de08444d00363efdda630a69ad4d27a208a9f7586482d4909a44a1cdbc63"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.11.0"
+  video_player_avfoundation:
+    dependency: transitive
+    description:
+      name: video_player_avfoundation
+      sha256: c238f5f0a26845cd0bcc2956049b63065a4d3c40ddfc22c3414cd170bef7fff9
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.11.0"
+  video_player_platform_interface:
+    dependency: transitive
+    description:
+      name: video_player_platform_interface
+      sha256: "92c0fbabe20c788e71fd10d26cea998d0d253282e65d145aed0818731cf593ce"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.9.0"
+  video_player_web:
+    dependency: transitive
+    description:
+      name: video_player_web
+      sha256: "9f3c00be2ef9b76a95d94ac5119fb843dca6f2c69e6c9968f6f2b6c9e7afbdeb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.0"
   vm_service:
     dependency: transitive
     description:

pubspec.yaml

@@ -17,6 +17,7 @@ dependencies:
   path: ^1.9.1
   path_provider: ^2.1.5
   sqlite3_flutter_libs: ^0.6.0+eol
+  video_player: ^2.11.1
 
 dev_dependencies:
   flutter_test:

test/presentation/workout_execution_screen_test.dart

@@ -1,4 +1,5 @@
 import 'dart:convert';
+import 'dart:io';
 
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
@@ -153,6 +154,12 @@ void main() {
   testWidgets('le bouton médias ouvre la sheet si médias présents', (
     tester,
   ) async {
+    final imageFile = (await tester.runAsync(_createTestImageFile))!;
+    addTearDown(() async {
+      await tester.runAsync(() async {
+        await imageFile.parent.delete(recursive: true);
+      });
+    });
     final clock = _FakeClock(DateTime.utc(2026, 7, 17, 12));
     final session = ActiveWorkoutSession(
       metadata: _metadata('session-1'),
@@ -170,34 +177,74 @@ void main() {
       ),
     );
 
-    await tester.pumpWidget(
+    await tester.runAsync(() async {
-      MaterialApp(
+      await tester.pumpWidget(
-        home: WorkoutExecutionScreen(
+        MaterialApp(
-          initialSession: session,
+          home: WorkoutExecutionScreen(
-          activeUseCases: _activeUseCases(
+            initialSession: session,
-            _FakeActiveSessionRepository(),
+            activeUseCases: _activeUseCases(
-            clock,
+              _FakeActiveSessionRepository(),
+              clock,
+            ),
+            closeUseCase: _closeUseCase(_FakeActiveSessionRepository(), clock),
+            historyUseCases: _historyUseCases(clock),
+            workoutTemplateUseCases: _workoutTemplateUseCases(),
+            mediaAssetLoader: (id) async {
+              if (id == 'image-1') {
+                return MediaAsset(
+                  metadata: _metadata(id),
+                  kind: MediaKind.image,
+                  localUri: imageFile.uri.toString(),
+                );
+              }
+              if (id == 'video-1') {
+                return MediaAsset(
+                  metadata: _metadata(id),
+                  kind: MediaKind.video,
+                  localUri: imageFile.uri.toString(),
+                );
+              }
+              return null;
+            },
+            videoMediaBuilder: (context, asset) => SizedBox(
+              height: 260,
+              child: Center(child: Text('Lecteur vidéo ${asset.metadata.id}')),
+            ),
           ),
-          closeUseCase: _closeUseCase(_FakeActiveSessionRepository(), clock),
-          historyUseCases: _historyUseCases(clock),
-          workoutTemplateUseCases: _workoutTemplateUseCases(),
         ),
-      ),
+      );
-    );
+    });
 
     expect(find.byTooltip('Voir les médias de l’exercice'), findsOneWidget);
 
     await tester.tap(find.text('Voir médias'));
-    await tester.pumpAndSettle();
+    await tester.runAsync(() async {
+      await tester.pumpAndSettle();
+    });
 
     expect(find.text('Médias de l’exercice'), findsOneWidget);
     expect(find.text('Images'), findsOneWidget);
     expect(find.text('Vidéo'), findsOneWidget);
     expect(find.text('1/1'), findsOneWidget);
-    expect(find.text('Image 1'), findsOneWidget);
+    expect(
+      find.byKey(const ValueKey('exercise-image-image-1')),
+      findsOneWidget,
+    );
+    expect(find.text('Image 1'), findsNothing);
+
+    await tester.tap(find.text('Vidéo'));
+    await tester.pumpAndSettle();
+
+    expect(find.text('Lecteur vidéo video-1'), findsOneWidget);
   });
 
   testWidgets('la galerie médias navigue entre les images', (tester) async {
+    final imageFile = (await tester.runAsync(_createTestImageFile))!;
+    addTearDown(() async {
+      await tester.runAsync(() async {
+        await imageFile.parent.delete(recursive: true);
+      });
+    });
     final clock = _FakeClock(DateTime.utc(2026, 7, 17, 12));
     final session = ActiveWorkoutSession(
       metadata: _metadata('session-1'),
@@ -214,31 +261,45 @@ void main() {
       ),
     );
 
-    await tester.pumpWidget(
+    await tester.runAsync(() async {
-      MaterialApp(
+      await tester.pumpWidget(
-        home: WorkoutExecutionScreen(
+        MaterialApp(
-          initialSession: session,
+          home: WorkoutExecutionScreen(
-          activeUseCases: _activeUseCases(
+            initialSession: session,
-            _FakeActiveSessionRepository(),
+            activeUseCases: _activeUseCases(
-            clock,
+              _FakeActiveSessionRepository(),
+              clock,
+            ),
+            closeUseCase: _closeUseCase(_FakeActiveSessionRepository(), clock),
+            historyUseCases: _historyUseCases(clock),
+            workoutTemplateUseCases: _workoutTemplateUseCases(),
+            mediaAssetLoader: (id) async => MediaAsset(
+              metadata: _metadata(id),
+              kind: MediaKind.image,
+              localUri: imageFile.uri.toString(),
+            ),
           ),
-          closeUseCase: _closeUseCase(_FakeActiveSessionRepository(), clock),
-          historyUseCases: _historyUseCases(clock),
-          workoutTemplateUseCases: _workoutTemplateUseCases(),
         ),
-      ),
+      );
-    );
+    });
 
     await tester.tap(find.text('Voir médias'));
-    await tester.pumpAndSettle();
+    await tester.runAsync(() async {
+      await tester.pumpAndSettle();
+    });
 
     expect(find.text('1/3'), findsOneWidget);
 
     await tester.drag(find.byType(PageView), const Offset(-400, 0));
-    await tester.pumpAndSettle();
+    await tester.runAsync(() async {
+      await tester.pumpAndSettle();
+    });
 
     expect(find.text('2/3'), findsOneWidget);
-    expect(find.text('Image 2'), findsOneWidget);
+    expect(
+      find.byKey(const ValueKey('exercise-image-image-2')),
+      findsOneWidget,
+    );
   });
 
   testWidgets('le chrono score démarre et s’arrête avec la bonne durée', (
@@ -282,6 +343,16 @@ void main() {
 
     await tester.tap(find.text('Démarrer'));
     await tester.pump();
+    clock.value = DateTime.utc(2026, 7, 17, 12, 0, 0, 100);
+    await tester.pump(const Duration(milliseconds: 100));
+
+    expect(find.text('00:00.1'), findsOneWidget);
+
+    clock.value = DateTime.utc(2026, 7, 17, 12, 0, 0, 900);
+    await tester.pump(const Duration(milliseconds: 100));
+
+    expect(find.text('00:00.9'), findsOneWidget);
+
     clock.value = DateTime.utc(2026, 7, 17, 12, 0, 1, 200);
     await tester.pump(const Duration(seconds: 1));
 
@@ -843,6 +914,16 @@ Finder _textFieldWithLabel(String label) {
   );
 }
 
+Future<File> _createTestImageFile() async {
+  final directory = await Directory.systemTemp.createTemp('gametime-media-');
+  final file = File('${directory.path}/image.png');
+  const transparentPng =
+      'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJ'
+      'AAAADUlEQVR42mNk+M9QDwADhgGAWjR9awAAAABJRU5ErkJggg==';
+  await file.writeAsBytes(base64Decode(transparentPng));
+  return file;
+}
+
 ActiveWorkoutSessionUseCases _activeUseCases(
   _FakeActiveSessionRepository repository,
   _FakeClock clock,